Personally IMO, if you want to use a laser for any sort of defense this is the only method I feel makes much sense.

My Green laser is sighted in @ the massive distance of 15ft, any further out and it is way to high. Its dead on, which just so happens to be roughly the distance from my bed to the door. This would allow a reasonably accurate shot quickly if I am unable to get or take a proper sight picture. Other then that situation I would be using the weapons iron sights to engage a target.

Also if a laser is being used then a round is prepared to fire if the target presents itself and/or does indeed prove to be a threat. I've heard countless "ill put the dot on their chest" nonsense in all kinds of gun shops.

__________________E-Shock rounds are engineered to expend maximum energy into soft targets, turning the density mass into an expanding rotational cone of NyTrilium matrix particles, causing neurological collapse to the central nervous system.- Yeah I can do that.
I guarantee you will know it if a bicyclist hits your house going 1000 mph. -Smaug